Philips TC5.1U CA, Service Manual

Page 1: ...U CA G_16340_000 eps 100306 Contents Page 1 Technical Specifications Connections and Chassis Overview 2 2 Safety Instructions Warnings and Notes 3 3 Directions for Use 6 4 Mechanical Instructions 6 5 Service Modes Error Codes and Fault Finding 7 6 Block Diagrams Test Point Overviews and Waveforms Chassis Block Diagram 9 7 Circuit Diagrams and CBA Layouts Diagram CBA Main Board 10 11 12 CRT Panel 1...

Page 2: ...nction Sleep timer Terrestrial Antenna in 75 Ohm F type 1 2 Connection overview 1 2 1 Connections Figure 1 1 Aerial connection Aerial In F type Coax 75 ohm D Figure 1 2 Rear audio and video connections Cinch Video CVBS Out Audio Out Ye Video CVBS 1 VPP 75 ohm kq Wh Audio L 0 5 VRMS 10 kohm kq Rd Audio R 0 5 VRMS 10 kohm kq Cinch Video YUV In Gn Video Y 1 VPP 75 ohm jq Bu Video U 0 7 VPP 75 ohm jq ...

Page 3: ... recommend a maintenance inspection carried out by qualified service personnel The interval depends on the usage conditions When a customer uses the set under normal circumstances for example in a living room the recommended interval is three to five years When a customer uses the set in an environment with higher dust grease or moisture levels for example in a kitchen the recommended interval is ...

Page 4: ...lass If this is not possible try to align the LF BGA with any board markers So as not to damage neighboring components it may be necessary to reduce some temperatures and times More Information For more information on how to handle BGA devices visit this URL www atyourservice ce philips com needs subscription not available for all regions After login select Magazine then go to Repair downloads Her...

Page 5: ... model on the market is produced with e g two different types of displays coming from two different O E M s By looking at the third digit of the serial number the service technician can see if there is more than one type of B O M used in the production of the TV set he is working with He can then consult the At Your Service Web site where he can type in the Commercial Type Version Number of the TV...

Page 6: ...for Use EN 6 TC5 1U CA 3 3 Directions for Use You can download this information from the following websites http www philips com support http www p4c philips com 4 Mechanical Instructions See Chapter 10 Parts List ...

Page 7: ...ut of IC 101 Check Q401 T401 and Q411 1 Check if B shorted to earth 2 To check whether D822 and R821 are turnoff 3 To check whether D823 and R823 are turnoff And whether C836 shorted Is it IC801 Pin 1 shorted to earth Is DB801 OK Check the components such as C801 C802 C806 C807 and C815 Replace DB801 Check Replace IC801 Y Y Y N N N N Y G_16340_005 eps 100306 Is the power supply of Q401 and Q411 ok...

Page 8: ...9 ok Replace the fail component Y N N Y G_16340_007 eps 100306 Replace IC901 Is the signal waveform at Pin 15 of IC901 right Raster OK Sound OK No TV picture Check R234 Q204 R235 C229 N Y G_16340_009 eps 100306 No picture dense noise dots Is the antenna feed line or the adapter broken Handing the antenna fault Is the signal at Pin41 Pin42 of IC101 ok Check Replace IC101 Is the signal at IF pin of ...

Page 9: ...Block Diagrams Test Point Overviews and Waveforms EN 9 TC5 1U CA 6 6 Block Diagrams Test Point Overviews and Waveforms Chassis Block Diagram G_16340_010 eps 100306 ...

Page 10: ...R414 47K C238 100n R311 4 7k D D C304 16V 4 7u R302 3 9K 33V R303 33K R101 100 R101A 100 R309 120 MOF C309 330n R308 120 1 2W MOF 100V 2W D208 1N4148 D209 2V4 D410 1N4148 R212 1N4148 R420A 2 2K 2006 01 11 R516 15K 2W R510 560 Q506 C1815 R514 2 7K C504 250V 10u 1 3 4 2 CRT BOARO L504 0 R523 1K Q507 A562 C508 10n R513 680 R511 680 C503 470P R512 0 R522 680 R515 1K D502 1N4148 D501 1N4148 5 FOCUS SCR...

Page 11: ...Circuit Diagrams and CBA Layouts EN 11 TC5 1U CA 7 Layout Main Board Top Side G_16340_012 eps 100306 ...

Page 12: ...EN 12 TC5 1U CA 7 Circuit Diagrams and CBA Layouts Layout Main Board Bottom Side G_16340_013 eps 100306 ...

Page 13: ...Circuit Diagrams and CBA Layouts EN 13 TC5 1U CA 7 CRT Panel G_16340_014 eps 100306 ...

Page 14: ...ts Layout CRT Panel Layout CRT Panel G_16340_015 eps 150306 G_16340_016 eps 130306 Layout Side AV Board Layout Keyboard Panel 40 P25207 KEA1X Layout Keyboard Panel 40 P25207 KEB1XG G_16340_017 eps 100306 G_16340_018 eps 100306 G_16340_019 eps 100306 ...

Page 15: ...8 1 Test pin potentiometer position 8 3 RF AGC Alignment 1 Apply an 8 scale gray signal 60dB 2 Adjust the AGC data in Factory Mode in such a way the noise just disappears 3 Change the signal to 90dB 4 Measure the voltage at test Pin C of Q101 this is the Pre Amplifier output 5 Write down this voltage and call it V1P P 6 Apply an 8 scale gray signal with Color Bar 90Db 7 Adjust the AGC data in Fact...

Page 16: ...side of the screen e By changing the value of GD BD set the reading of the color analyzer to PHILIPS standard x 285 4 y 296 4 f Separately set the brightness and contrast from minimum to maximum repeat the step b up to and including e until the reading of the color analyzer is correct The PHILIPS standard is Warm X 315 10 Y 321 10 Cool X 269 10 Y 275 10 8 6 Adjustment of Sub brightness 1 Apply the...

Page 17: ...SVD ASSH SHPN SHPN 20 20 19 19 07 10 2A FAC 07 MOD1 MOD2 MOD3 OPT OPTM1 OPTM2 HDCNT HSTOP 60 B0 70 37 C0 00 00 FF FAC 08 RFAGC BRTS OSD OSDF CCD OSD CCD OSDF TXCN RGCN 25 00 21 53 4A 65 1F 16 FAC 09 V01 V25 V50 V100 VOLMAX CURTCEN GATE COL OUT 46 64 68 6E 32 A5 2A 73 FAC 10 MODE4 MODE5 MODE6 MODE7 MODE8 MODE9 22 0B 19 54 2D 02 FAC 11 MPB STR MPB HMC MPB HP MPB LP MPB LIM SUB FRE SUB HP VOL MAI 43 ...

Page 18: ...filter removes the high low frequency interference Then DB801 transforms the AC power to DC power T803 and IC 801 work in standby state T803 will provide a power voltage to IC101 IC101 scans for the KEY IN signal Pin 3 of IC101 from the ON OFF switch on the keyboard If KEY IN power on signal pin 64 IC101 will generate a signal to drive the photo coupler IC8021 It acts as a feed back circuit feed b...

Page 19: ...passes through Q203 R225 X202 and a High pass filter consisting of C254 L206 C253 filters out the video signal and low frequency interference Figure 9 4 Sound process section 1 SIF will be finally sent into Pin2 of IC1001 An analog automatic gain control circuit AGC allows a wide range of input levels The analog to digital conversion of the IF sound signal is done by an A D converter The high pass...

Page 20: ...reen display controller remote control interfaces IIC bus interfaces and the closed caption decoder The TV signal processor contains PIF SIF Video multi standard chroma deflection and RGB processors Features MCU High speed 8 bit CPU 12 I O ports I2C bus interface multi master 14 bit PWM output 1 channel for a voltage synthesizer 7 bit PWM output 1 channel 8 bit A D converter 3 channels Remote cont...

Page 21: ...Circuit Descriptions Abbreviation List and IC Data Sheets EN 21 TC5 1U CA 9 Figure 9 6 Block Diagram Main IC 1 G_16340_026 eps 100306 ...

Page 22: ...STV8172A is a vertical deflection booster designed for TV and monitor applications This device supplied with up to 35 V provides a maximum output current of 2 5 A to drive the vertical deflection yoke The internal fly back generator delivers fallback voltages of up to 75 V Figure 9 8 Vertical Deflection Booster G_16340_027 eps 100306 G_16340_028 eps 100306 ...

Page 23: ...IN 14 and 15 X CHANNELS IN OUT 16 VDD Pin No Pin Name Type Short Description 1 AVSUP Analog power supply 5V 2 ANA_IN IN IF Input 1 3 ANA_IN IN IF common 4 TESTEN IN Test pin 5 XTAL_IN IN Crystal oscillator 6 XTAL_OUT OUT Crystal oscillator 7 TP Test pin 8 D_CTR_I O_1 IN OUT D_CTR_I O_1 9 D_CTR_I O_0 IN OUT D_CTR_I O_0 10 ADR_SEL IN I2C BUS address select 11 STANDBYQ IN Stand by Low active 12 I2C_C...

Page 24: ... Plate Model NO 1 8 S T Screw F 3 X 10 BT 2 MGT Rear AV Jack 9 Rear AV Inlay 1 10 S T Screw B 4 X 20 AB 8 MGT Rear and Front Cabinet 11 Rear Cabinet 1 12 Cushion 25mm X 7mm 2 13 S T Screw W 3 X 10 AB 3 MGT Main Board 14 Main Board 1 15 Main Board Bracket 1 16 CRT Screw HA 6 X 30 4 MGT CRT Front Cabinet 17 Metal Cushion 4 18 CRT 1 19 Fibre Sheet 4 20 S T Screw W 3 X 10 AB 6 MGT KEY Board Front Cabi...

Page 25: ...corative Piece for Power Knob 1 27 Power Knob 1 28 Power Spring 1 29 Logo 1 30 Front Cabinet 1 31 S T Screw W 3 X 10 AB 4 MGT CRT Support 32 S T Screw W 3 X 10 AB 4 MGT Guide Rail 33 Cushion 25mm X 7mm 2 34 Power Line Block 1 35 Guide Rail Left 1 36 CRT Support 2 37 Guide Rail Right 1 ITEM NAME QTY REMARK ...

Page 26: ...Revision List EN 26 TC5 1U CA 11 11 Revision List Manual xxxx xxx xxxx 0 First release ...